Septic Systems in Rhea County, TN

Regulations, costs, soil data & local providers

Pop. 32,870 ~36% on septic ~4,733 septic homes Well drained soil

Septic pumping in Rhea County, Tennessee costs $250-$500 (avg $350). A new septic system installation costs $5,050-$10,100. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 4,733 homes in this county use septic systems.

Septic System Costs in Rhea County

ServiceLowAverageHigh
Pumping / Cleaning$250$350$500
Routine Inspection$200$250$350
Real Estate Inspection$350$500$700
Minor Repair$650$900$4,400
Conventional Installation$5,050$7,200$10,100
Aerobic System Installation$9,450$13,500$18,900
Drainfield Replacement$5,050$7,200$10,100
Perc Test$750$1,100$1,550

Cost estimates based on regional market data for Rhea County, Tennessee. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Rhea County

Drainage Class
Well drained
Hydrologic Group
B
Unique Soil Types
60
Avg Bedrock Depth
3.3 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Minor components 411 - -
Gilpin 380 Well drained C
Lily 376 Well drained B
Allen 344 Well drained B
Fullerton 333 Well drained B

Septic Tank Absorption Field Suitability

USDA NRCS rates soil suitability for septic absorption fields across this county:

Not Limited (Good)0%
Somewhat Limited23.3%
Very Limited76.7%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Septic Regulations & Permits in Rhea County

State Regulatory Body
Tennessee Department of Health/Environment
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
No

Contact county health department for specific requirements.

Contact the Rhea County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Rhea County

How much does septic pumping cost in Rhea County?
Septic pumping in Rhea County, Tennessee typically costs between $250 and $500, with an average of $350. Costs vary by tank size (1,000-1,500 gallons is typical), ease of access, distance from the pumping company, and how full the tank is. Most homeowners should pump their tank every 3-5 years.
How much does a new septic system cost in Rhea County?
A conventional septic system installation in Rhea County typically costs $5,050-$10,100. An aerobic treatment unit (ATU) costs $9,450-$18,900. Given the predominantly well drained soils in this area, some sites may require alternative system types. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Rhea County?
Yes. Virtually all counties in Tennessee require a permit before installing, repairing, or replacing a septic system. The permit process typically involves a soil evaluation or percolation test, system design by a licensed professional, application to the county health department, and one or more inspections during installation. Contact the Rhea County health department for current requirements and fees.
What soil types are in Rhea County and how do they affect septic systems?
Rhea County has predominantly Minor components, Gilpin, Lily soils. The dominant drainage class is Well drained with hydrologic group B. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 23.3% as "Somewhat Limited", and 76.7% as "Very Limited".
How often should I pump my septic tank in Rhea County?
The EPA recommends pumping your septic tank every 3-5 years for a typical household. The exact frequency depends on tank size, household size, and water usage. A 1,000-gallon tank serving a family of 4 should generally be pumped every 3 years. Some counties in Tennessee have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Rhea County?
It depends on your specific site. USDA soil data shows that 76.7% of soils in Rhea County are rated "Very Limited" for septic absorption fields, while only 0% are "Not Limited." This means many properties will require alternative systems such as mound systems, pressure distribution systems, or aerobic treatment units. A percolation test ($750-$1550) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Rhea County?
A well-maintained septic system in Rhea County typically lasts 25-30 years, though some components may need attention sooner. The concrete septic tank itself can last 40+ years, while the drainfield — the most critical and expensive component — usually lasts 15-25 years depending on soil conditions (Rhea County has predominantly well drained soils). Regular pumping every 3-5 years and avoiding excess water usage are the two most effective ways to extend system life.

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Quick Facts

Population32,870
Est. Septic Homes4,733
Avg Pumping Cost$350
Drainage ClassWell drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $250-$500
Inspection: $200-$350
Repair: $650-$4,400
Installation: $5,050-$10,100

Data last updated: 2026-04-13